Continuous kiln.



W: H. SMITH.

CONTINUOUS KILN.

APPLIUATION ISILED 0M. 8, 1909 l Afi 1 m Patented. Mar. 8, 1910.

2 SHEETS-SHEET 1.

WILLIAM HENRY SMITH; OFSWIN'IOW, ENHLAND.

conrrnuons n rin'.

earner;

specification of Letters lt'atent.

application filed October ii, 1909. rterial lilo-$521369. 1

To cll whom it may concern: I

Be it known that l, Warmest Hnnnr Smirrnasubjectof the King of'Great Britsin and lreland, residing in Swinton, in the county of Lancaster, England, have invent- ,ed an linproved Continuous Kiln, of which the following is a specification. p This invention relates to an improved con- ,tinuo'us nuiile lriln for burning china earth-' enware, tiles, lazed, enameled or terra cotta ware and the ike by gas, with the object of tral portion of the kiln, in which three avoiding the risk of fracture by too rapid firing or too rapid cooling.

in the accompanying ing my invention and to which I hereinafter refer, Figure 1 is apart, side'view and part longitudinal section of so much of a kiln as is necessar to show in im irovements. Fi m 2 is apart plan and part longitudinal. section.

and Fig. 3 a transverse section of the same on line A A. Fig. 1; Fig. 4c is a side view, Fig. 5' a plan partly in section and Fig. 6 a cross section of the truck for carrying the ware.

In these views the same letters refer to like parts. I

Accordmg to and for the purpose of my said invention, it construct a continuous lrlln of the form preferably as shown on the drawings; I lay a line of rails in the bottomof the kiln and place trucks Z2 thereon, that are constructed with transverse divisions, under the platform on which the'goods' to be fired are placed, leaving spaces d between said divisions corresponding in width and position to the width and position of the tines that are formed in the sides of the cen- (preferably) fire holes 6, e, and e are iconstructed and fittecl with gas learners, one

fire holes are arranged so that' each of the fines from the ire holes is opposite to a flue on the opposite side of the kiln, and also correspond with the'transverse fines or pas sages d through the trucks Z). V

ln constructing a kiln I prefer to arrange the fines as shown on the drawing, but the number of dues and their positions may be variedv 'so long as the openings in the fines and ttlie distances between said fines corre spond with the passages and the distances between. said passages 111 the trucks.

In the application of iny invention in a kiln having three fire holes in'the center as shown onthe drawing, I place a tra n of drawings illnstrat.--'

transverse spaces oriopenings d therein, sai

transverse spaces being placed opposite the openings f at the base of the dues 7" that are in the central portion of the kilng'the heat fromthe gas in the first fire hole e passes trucks as l igs. a, ,5 and 6, each truclr havin Patented Mar d, llttlldo through the first transverse space d 31D the 7 leading truck 6, and ascends the flue f op posits thereto, which is continued over the kiln to the near oriiring hole side, and then along until it joins the flue to the chimney, the remaining flues repeating alike course to the chimney; the passage of the heat frornfeach of the tire holes is by the same means conducted successively in a continuous circuitous course around the'lriln to the chimney, the heat being greatest in the cen ,ter of the kiln and decreasing in intensity" at each end of the rah; the goods to be fired are placed on a truck which is moved into the kiln, remaining for the required. time near the entrance; the truck is then moved along the lengthof another truck, which it succeeds, again remaining a specified time, and is. followed in like manner by other tracks, the goods being thereby gradually heated to a greater extent until each truck reaches the center of the kiln; when the firing is completed, each truck gradually in like manner recedes from the heat until i reaches the outer end of the kiln, when the goods will have sufliciently cooled to be re moved therefrom; the line of rails in'the kiln may be slightly lower at the exit than at the entrance to facilitate the passage of the trucks, which may be moved by an end 1 less chain or by otherconvenient means. 1*

Having thus described my invention, what I claim as new and desire to secure by Let ters Patentas which the heat for firlng 71s obtained: these.

said kiln opening directly into the passages of the trucks when said trucks are in the proper positions, and a series of fines also opening into the passages of the trucks and respectively opposite the fire hole openings with a truclror series all of said fines extending upwardly 1n snhstantially parallel lines for different dis;

tances and then extending horizontally pan allel with thelongitudinal axis of the kiln to an outlet.

lie

2. The combination in a kiln, of an elongated chamber having inlet and outlet openmgs; with a series of trucks operative within said chamber of the kiln and provided with rality of series of fines also having openings capable of re istering with the passages of the trucks, allot the fines extending trans- \ersely of the kiln for tlillerent distances and then horizontally parallel with the longitn- (hnal axis of the kiln to an outlet.

In testimony whereof I have signed my 13 name to this specification, in the presence of two subscribing witnesses.

WILLIAM HENRY SMI'l. ll.

\Yitnesses'.

'lnos. liaesco'r'r, HAnoLn \VALKER. 

